Update README.md

README.md

@@ -4,7 +4,10 @@ This package contains the two plugins. The check plugin **_cisco_cellular_lte_**
 
 <details><summary>cisco_cellular_lte</summary>
 
-This check plugin will monitor 2G/3G/4G wireless connections. By default it will only discover cellular interfaces with a SIM card attached. It will show
+This check plugin will monitor 2G/3G/4G wireless modems and there associated connections. By default it will only discover cellular modems with a SIM card/connectin attached. It was tested with the integrated modem of the Cisco ISR1100 series routers and the with a NIM in a Cisco ISR4451. Each modem can have up to two connections at the same time (over one SIM-card). The integrated modems and also newer NIM modules have dual SIM-card capabilities. Dual SIM-Cards can be usesd in a redundancy failover manner. Only one SIM-Card will be active at any given time.
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+In the service summary the plugin will show
 
 -    the connection status
 -    the values for RSSI, RSRP and RSRQ